Method for producing optical-active cis-piperidine derivatives
申请人:——
公开号:US20040171836A1
公开(公告)日:2004-09-02
An optical-active cis-piperidine derivative of high chemical purity and high optical purity is efficiently produced through optical resolution of a cis-piperidine derivative mixture, racemic cis-piperidine derivative with an optical-active tartaric acid derivative or an optical-active amino acid derivative. For the optical-active tartaric acid derivative, preferred are optical-active di(paratoluoyl)tartaric acid and optical-active di(4-methoxybenzoyl)tartaric acid; and for the optical-active amino acid derivative, preferred is optical-active N-benzenesulfonylphenylalanine.
[EN] SYNTHESIS OF ARYL-SUBSTITUTED PIPERIDINES BY HYDROGENATION OF ARYL-SUBSTITUTED PYRIDINES<br/>[FR] SYNTHESE DE PIPERIDINES SUBSTITUEES PAR ARYLE PAR HYDROGENATION DE PYRIDINES SUBSTITUEES PAR ARYLE
申请人:PFIZER PROD INC
公开号:WO2004083181A1
公开(公告)日:2004-09-30
The invention is a process to hydrogenate an aryl-substituted pyridine, such as 2phenyl-3-aminopyridine, without over-reducing the aryl ring using a specific Pt/C catalyst.
PROCESS FOR PRODUCTION OF OPTICALLY ACTIVE CIS-PIPERIDINE DERIVATIVES
申请人:Toray Fine Chemicals Co., Ltd.
公开号:EP1457487A1
公开(公告)日:2004-09-15
An optical-active cis-piperidine derivative of high chemical purity and high optical purity is efficiently produced through optical resolution of a cis-piperidine derivative mixture, racemic cis-piperidine derivative with an optical-active tartaric acid derivative or an optical-active amino acid derivative. For the optical-active tartaric acid derivative, preferred are optical-active di(paratoluoyl)tartaric acid and optical-active di(4-methoxybenzoyl)tartaric acid; and for the optical-active amino acid derivative, preferred is optical-active N-benzenesulfonylphenylalanine.
The invention is a process to hydrogenate an aryl-substituted pyridine, such as 2-phenyl-3-aminopyridine, without over-reducing the aryl ring using a specific Pt/C catalyst.